Was playing around with the charts and stats on Blockchain.info and thought this was interesting so will share it here:

Interesting chart, thanks. Bitcoin-Qt will always be an integral part of the bitcoin network i'm not sure 0.8 will be enough though, only the move to a database of unspent tx outputs or SPV will vastly improve synchronisation time (Perhaps 0.9?).

Let's say I enable notifications but then after a while I disable them. My question is, after I turn them off, any new key pairs I generate, can blockchain.info see the Bitcoin addresses and tie them to my email I had previously notification enabled to?

Also, is using an email for sending backs in anyway diminishing the privacy of my Bitcoin addresses?

Thanks in advance for taking the time and answering these questions!

When you disable notifications all the hashed public keys should be removed from the server on next sync. So if you generate a new bitcoin address it should not be possible to tie it to the old addresses. But Adding an email does inherently diminish privacy because the more information you provide the more data that could be used to build a "profile" on you. If there is really an address you want kept private I would recommend creating a new disposable wallet through tor or a using mixer address.

While creating custom single-recipient outgoing transaction, in both FireFox 13 and Chrome 24.0.1312.56, two of my wallets show

"Insufficient funds"

message and quote less than 30% of the actual listed wallet Final Balance as available for sending. Receive Moneypanel values add up to the Final Balance correctly. Have not encountered this problem up to 10:10am ET today. Should I be worried?

Thank you BlockChain devs for the great service!

The problem is still there, both in FireFox 13 (w/o Blokchain add-on) and Chrome 24.0.1312.56

Tried 3rd, long-untouched wallet, both in FireFox 13 (w/o Blokchain add-on) and Chrome 24.0.1312.56 it gives error message "Insufficient Funds", while Received Funds correctly sum up to the Current Balance.

Yep, the old app needs uninstalling. This is due to stupidity on my part, I forgot the password to the certificate used to publish the original app and without it it's not possible to submit updates. So unfortunately a new app had to be created.

Tried 3rd, long-untouched wallet, both in FireFox 13 (w/o Blokchain add-on) and Chrome 24.0.1312.56 it gives error message "Insufficient Funds", while Received Funds correctly sum up to the Current Balance.

I have altered the transaction output logic to prefer large value outputs over old outputs when the number of available outputs is very large. Please try again now.

Have you imposed a hard limit of 100 outputs per transaction by any chance? Is there any way to relax it to, let us say, 200? I think there was a hard limit of 250 some time ago, but it was dropped afterwards, if I'm not mistaken?

By sending yourself some transactions. For example if a bitcoin address has 100 0.001 BTC outputs you could send yourself one 0.1 BTC transaction to combine the 100 outputs into one. The problem is it may end up costing more in transaction fees than the inputs are worth.

Have you imposed a hard limit of 100 outputs per transaction by any chance? Is there any way to relax it to, let us say, 200? I think there was a hard limit of 250 some time ago, but it was dropped afterwards, if I'm not mistaken?

Yes this is correct. The limit was reduced to 100 as some users where reporting problems with very large transactions not confirming and incurring unexpectedly high fees. I've adjusted the limit to 200 now, this should be enough for the vast majority of transactions.

I have a feature request. Could you please be slightly more verbose about all the charts? Could you please add a chart that shows the count of addresses that actually hold coins?

I will add this chart and the one suggested previously at the weekend.

Would it be possible to have a similar chart but only count the number of addresses that hold a balance above a certain threshold (e.g. only count addresses with 1 btc or more). If the threshold was user configurable that would be perfect.

Would it be possible to have a similar chart but only count the number of addresses that hold a balance above a certain threshold (e.g. only count addresses with 1 btc or more). If the threshold was user configurable that would be perfect.

Good idea. Guess to be consistent with the other graphs this will be more like >1cɃ, >1Ƀ, >100Ƀ

Have you imposed a hard limit of 100 outputs per transaction by any chance? Is there any way to relax it to, let us say, 200? I think there was a hard limit of 250 some time ago, but it was dropped afterwards, if I'm not mistaken?

Yes this is correct. The limit was reduced to 100 as some users where reporting problems with very large transactions not confirming and incurring unexpectedly high fees. I've adjusted the limit to 200 now, this should be enough for the vast majority of transactions.

Now it makes perfect sense, and sending coins works as expected. Thank you!